Tobacco-conveying device for cigar-bunching machines.



, Patented sept. 3o, |902. I y.1. n.-scHM|TT. TIJBACCO CONVEYING DEVICEFOR CIGAII BUNCHING MACHINES.

(Application led Jan. 81, 1900.)

5 Sheets-Sheet (No Model.)

w i www Patented Senf. 30, i502..

J. nf SCHMITT". TOBACCO CUNVEYINGDE\ I IGE FDR CIGAB BUNCHING MACHINES.

' (Application lecl` Jan. 31, 1,900.)

5 sheets-Shut -2.

Udo Model.)

m: Nonms PErzns co., PHOTO-Limo.. wAsmNs'roN. D. c.

No. 7|0,o|a. Patented sept. 3o. |902.

- J. R. SCHMITT. TO'BACC CONVEYING DEVICE FUR CIG'AB BUNGHING MACHINES.

4 (Aplicaeion sied .Im-s1, 1900.)I

(No Model.)

5 Sheets*$heef 3.l

,I Fig. 5L. Zay/i5.

ma Nonms PETERS co.. PHo1oLxwu..wAsHmuToN. D. c.

No. 7|o,o|s. Patented sept. 30, |902.

- J.- R. SCHMITT.

TOBACCO CONVEYING DEVICE FOR CIGAR BUNCHING MACHINES.

lApplcatlon filed JanA 3ll1900n (no Modem 5 sheets-sheet 4.

" Inga .Patented sept. 3o, i902'.

.1." n.' sc

Y HMITT. TOBACCO CONVEYING DEVICE FOR CIGAH BUNCHING MACHINES.

(Application mm1 kan. 31, 1960.)

5 SheetswSheet 5.

(un Model.)

,rHE Nunms PETERS co. Puo'mu'mo., wAsmNs'mN, uA c.

UNITED d STATES PATENT OFFICE;

JOHANN RUDOLF SCHMITT, OF OBERRAD, GERMANY.

TOBACCO-CONVEYING DEVICE FOR ClGAR-BUNCHING MACHINES.

SPECIFICATION forming part of Letters Patent No. 710,018, datedSeptember 30, 1.902. nppncanoniea Jnua'ry 31.1906. serial No. 3,503.(Numan.)

To @ZZ whom, it may concern/.- l

Be it known that I, JOHANN RUDOLE` SCHMITT, a subject of the King ofPrussia, Emperor of Germany, residing at Oberrad, in the Province ofHesse-Nassau, Kingdom of Prussia, German Empire, have invented certainnew and useful Improvements in Tobacco-Conveying DevicesforOigar-Bunching Machines, (for which I have applied for a patent inEngland, dated December 7, 1899,) of which the following-is aspecification.

My present invention relates to an improved tobacco-couveying ,devicefor cigarbunching machines; and the objects of my improvements are tomaintain a uniform and adjustable density of the tobacco in passingfthrough the machine, to thus facilitate the manipulation of the tobaccoand produce cigars of uniform weight and density.

In the accompanying drawings, Figure 1 is a side elevation, partly insection, of a machine for bunching cigars provided with my improvedtobacco-conveying device. Fig. 2 is an end view, partly in section, ofsaid machine. Fig. 3 is a plan thereof. Figs. 4, 5, and 6 represent thetobacco-conveying channel in longitudinal section, cross-section, andplan, respectively;'and Figs-7 and 8 represent a side view and plan,respectively, of the mechanism for removing the tobacco bunches fromythe wrappingtable to the molds. Figs. 9 and 10 represent in detail themechanism for operating the feed-rack and carrier for advancing thetobacco. Fig. 11 is a plan of the retarding device on a larger scale.Fig. 12 is a side elevation of the same, likewise showing themouthpiece. Fig. 13 is a front elevation of the pivoted mouthpiece. Fig.14 is a side elevation of the same.

Similar characters refer to similar parts throughout the several views.

The frame of the machine consists of the standard 0 shelf 26, andbracket 27, the standard and shelf beingcast in oney piece. The bracket27 is secured to the shelf 26 by means of screws (or bolts 26u.) In thestandard ct a shaft 7c is-rotatably mounted in bearings, and upon thisshaft are mounted the cams or tappets 5, 1, 39, and to actuate themoving parts of the machine, as hereinafter described. The Ycam ortappet x is so' arranged as to engage with the adjustable finger 1; onthe lever u by the rotation of the shaft k. Pivoted to this lever is therod t, the uppercnd of which is connected to the spindle q, so as toimpart an elliptical stroke to feeding-racks o, as hereinafterdescribed.

.A spiral spring y connects the lever u to the standard in order to drawthe finger U of lever u into contact with the tappet The spindle q isconnected to a spindle s by the coupling-pieces r, one of which isprolonged into a nger lO, which engages an adjustingscrew ll, whichlimits or regulates the throw of the links or coupling-pieces r.

The cam 5 engages with the horizontal arm 4 of a hell-crank lever havingtwo vertical arms 3, keyed on a common shaft, as shown in Fig. 2, andeach connected by a link 2 with a vertical lever 1', which levers arefulcrumed on a shafts Vand are each connected by a spring 6 with theframe-standard a, so as to retract them when released by the cam 5. A

stop-screw l2 is provided to limit and regu- Vlate the movement of thelevers 3.

The machine is provided with a removable vtrough b for conveying thetobacco, formed in transverse section to correspond approximately withthe longitudinal section of the cigar-fillers to be produced. Inpractice a number of ysuch removable troughs are employedinterchangeably for'different forms of fillers. l

Above the tobacco-conveying channel or trough b, Figs. 4 and 5, aresecured the elastic plates d, which project partially over the top of'the channel (see- Figs. 2 and 5) and are secured to the top of thetrough or channel by screws e., rubber washers e' being interposed, asshown in Figs. 2, 4, 5, and 6. The channel or trough b is fastened tothe standard d by means of the iron rails f, secured to the bottomof it,and can easily be removed and another be substituted in its place. Thisis of importance, because it makes it possible to produce any desiredform of filler on one and the same machine by simply exchanging the channelor trough b, which can be quickly done. At the right end of theconveying channel or trough b is provided a hopper h, Fig. 4, which islined on one side, as shown at 11.

A bar g, consisting of a number of metallic bands or ribbons solderedtogether for the IOO purpose of affording a certain amount ofelasticity, is secured by its ends longitudinally over the center of thetrough l) to confine the tobacco therein with elastic pressure. On bothsides of the bar g, between it and the plates d, are the sliding rackso, having downwardly-projecting teeth to catch and feed the tobacco intheir forward movement. These racks are connected by the bridge-piece p,which is formed with a fork-shaped end engaging the spindle q, as shownin Figs. 1 and The spindle q is coupled to the shaft s by means of therods r, pivoted on said shaft, and receives a vertical vibratorymovement from the rod 15 and series of levers u, fu, and w, actuated bya cam x, secured on the main shaft 7c. The racks 0 are supported at theright end by the spindle q and are connected at the left to the upperends of the vertical levers 1', Fig. 1, which are fulcrumed on the boltz. These levers receive a vibratory movement from the links 2 andbellcrank lever 3 4 and the cam 5 on the main shaft 7c, in conjunctionwith the springs 6. The levers 1l are indirectly coupled at their freeends, through the medium of the link 9, to the bow 7, which is connectedto the racks 0 by the link 9. The bow 7 is bifurcated horizontally atits left end and carries at this bifurcated end thedownwardly-projecting feeding-arms 8, Figs. 9 and 10, which are formedwith seri-ations or coucavities at bottom to forward the tobacco to thecutter. The bow 7 has at its right end a vertical fork sliding on thefixed shaft s, on whose ends the connecting-rods r oscillate, and onbeing moved not only operates the racks o back and forth, but alsodescribes an oscillating motion about the shaft s, the hollow portion ofthe bow being moved about the hubs of the racks o.

At the left end of the transport-trough b is provided a retardingdevice, Figs. 1, 11, and 12, which prevents the tobacco from expandingendwise. This device consists of two or more plates 13, which arerigidly secured to the rod 15', which braces the two lever 15, but isrotatable therein. The levers 15 turn on pins 14, which are mounted insmall standards, and the plates 1'3 are continuously held up to theirwork against the end of the transport-channel by springs 16 on the rod15'. The position of the plates is shown in Fig. 12, from which it willbe seen that they project through a slot 19c in the lop of themouthpiece 19'. The tobacco advanced in the channel b presses againstthe plates 13, so that. these turn with their shaft 15' against theresistance of the springs 16 to the dotted position I, Fig. 12.

17 represents a cutter and separator of common form which is forced downin usual and well-known manner to separate the required amount oftobacco for a charge or filler. The arm or plunger in which the cutteris mounted carries an adjustable stop 17', which when the cutter isdepressed bears on the longer arm of a bell-crank lever 18, pivoted tothe stationary frame. On the downward movement of the cutter andseparator 17 the plates 13, the shaft 15', and the levers 15, turning onthe pins 14, are raised to the dotted position 11 by means of the finger18', situated on the shaft 15', and the lever 18, so that these plates13 are entirely removed out of the mouthpiece 19, Fig. 1. The mouthpieceis situated at the front or exit end of the transport-trough, Figs. 1and 12, and is closed in the direction of the transportchannel by anelastic leather diaphragm 19, as represented in dotted lines in Fig. 12,said diaphragm being supported by an insertionpiece. (Not shown in thedrawings.) The chief constituent of the mouthpiece is in this connectionthe top 19', which is pivoted between two oblique side arms 19a, Figs.13 and 14, and is connected by these with the side pivots 19E. Thesepivots 19e turn in bearings in the frame, and 011 one of them is keyedan operating-crank 19b to impart an oscillating motion, as indicated bydotted line in Fig. 14. Beneath this mouthpiece and connected to thestandard is the wrapping-plate 20, on which the apron 21 is arranged.

The apron is actuated by the lever 23, which is pivoted to the frame at22. Connected to this lever 23 at one end is the rod 24, the other endof which is secured to the lever m, which is pivoted at its lower endtothe standard and is connected near its upper end to the standard by aspiral spring 25. The cam 1 on the shaft k engages this lever m. To thetop of the lever m a plunger n is secured, which projects into thetrough b.

The plate 29, upon which the mold 28 is mounted, is connected by meansof the pins 30 and having downwardly-projecting teeth is slidablyarranged upon the bracket 27. An elongated pawl 31 engages with theteeth on the under side of the plate 29, being kept in engagement by thespring 32. The other end of the elongated pawl is connected to one armof a bell-crank lever 35, which is pivoted to the frame at 33. The otherarm of this bell-crank lever engages with the cam 36, which is mountedupon the shaft 7c, and a spiralspring 34is interposed between thebellcrank lever 35 and the standard.

The mechanism for moving the tobacco bunches from the wrapping-table 20to the mold-plate 28 consists of the beam 40, mounted upon the verticalshaft 37, a lever 38, secured 011 the lower en d of this shaft, and aface-cam 39, mounted on the shaft c, and catchers 50 and 51.

A headpiece 41 is provided on the free end of the beam 40. To thisheadpiece a rigid arm 42 is secured, and to this arm a swiveling part 43is secured, on the outer side of which a roller 44 is provided. In thesame plane as the roller 44 a lever 45 is pivoted, the one end of whichbears on the roller 44,

while the other end enters into a depression 46 on the end of lever 40.A slotted arm 47 lOO IIO

mounted on the shaft lo, and the other end of' the arm is pivoted to theplunger 60. .A spiral spring 56 keeps the curved arm in contact with thecam 55. On the spindle 54 a small lever 57 is mounted, and to the end ofthisA lever a long lever 59, which is pivoted at 58, is jointed. Theother end of the lever 59 is jointed tothe arm 61, which is rigidlysecured to or made in one piece with the hubot the plunger 60.

The operation of the machine is as follows: On the shaft krotating thecam x and the spring y will cause the lever u, and consequently the rodt and the racks o, to recipro-v cate in a vertical direction. In 'thesame manner the cam 5 and spring Gwill cause the lever 1' to reciprocateabout the fulcrurn z, so that the racks o will be given a longitudinalmotion in addition to their Vertical reciproeating motion. Thecombination of these-two motions causes every point on the racks todescribe a path of an approximately elliptical form. The cam 1 and thespring 25 will cause the .rod m, and consequently the plunger n, toreciprocate backward and forward horizontally. The ltobacco is fed intothe hopper h K and is forced ytoward the left, Fig. 1, b vthereciprocating plunger fn. plunger n the tobacco is caught and furtheradvanced by the racks o, which, inasmuch as they describe anapproximately elliptical path, will press on the tobacco whenpassingtoward the left and rise above the same when passing toward theright, Fig. 1. In this manner the tobacco is fed up to the left endV otthe conveying-trough, andduring its passage along the channel it isprevented from expanding by the plates d and bar g, and at the left endof the channel expansion is further prevented by the retarder 13. "Therequisite amount ot' tobacco is now cut oft' by the cutter 17. When thecutter 17 descends, it acts upon one arm of the bell-crank lever 18, theother arm of which raises the lever 15, and consequently the retarderv13, so that the mouthpiece can turn through ninety degrees without thetobacco being destroyed by the retarders 13, and a plunger (not shown inthe drawings because of well-known construction) forces the charge outof the mouthpiece onto the Wrapping-table 20. When thev cutter 17 rises,the retarder 13 falls back into its first position under the action ofthe spring 1G. When the wrapping of the charge has "beeneftected, whichis done in ,the known manner by the reciprocation of the lever. 23

After leaving, the.

derneath the Wrapping-table 20. The catchers 50 and 51, being, as abovedescribed, arranged on the end of the beam 40, are now moved by thisbeam under the action of the face-cam 39, lever 38, and spindle 37 overthe mold-plate 28. By reason of the arm 47 and rod 48 the catcheris inthis position parallel tov the Vmolds. While the charge is being movedby the catchers from the position underneath the wrapping-table 2O tothe position above the mold-plate, the smaller lever 45, Fig. 8,is-pressedagainst the roller 44 by` the projection on whichthe other endof this lever 45 then bears, andthe catchers are in this manner causedto exercise a certain amount of pressure on the charge theycontain. Whenthe catchers 50 and51 rise above the molds, the one end of the lever 45renters into the depression 46 and the roller 44 is released. Theplunger 60,.secured to the .end of the curved beam 53, is now caused todescend, owing to the action of the cam 55, and the bunch is forced outof the catchers into a compartment of the mold-plate. When this hastaken place, the cam-36 acts upon the bell-crankv lever 35 and therod-31 is moved toward the right. A Bythe hook on the left end of thisrod 31, which engages with the teeth on the under side of the plate 29,this plate is moved through the distance between two compartments. Whenall the Vcompartments have been filled and the mold 28 has reached theend ot' its path, which may be IOO announced by a customary alarm, a newmold Y vcan be placed into position.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination kofsithe hopper h, ex-vlever ymechanism connectedwith the racks and feeding-arms, adapted to move them forward andbackward above the trough; independent lever mechanism engaging theracks and adapted to raise and lower'them; and connecting-rods 1', onwhich the raising and lowering device oscillates, substantially assetforth.

3. In a machine of the character described, the combination of a tobaccoconveying trough b having a cross-section corresponding to the form ofthe bunches to be made, the compressing and feeding racks o and thefeeding-arms8 operating above theV conveying-trough b,theconnecting-rods r; the forked arm 7 and link 9 connecting feeding-arms 8and racks .0; levers 1l suitably connected with IIO the racks o andfeeding-arms 8, means for oscillating said levers 1', rods t suitablyconnected with the lever u and the other lever, and suitable mechanismfor oscillating the lever u, substantially as and for the purpose Setforth.

4. In a machine of the character described, the combination of a tobaccoconveying trough b; the levers 1'; the racks 0 journaled at one end tothe levers 1', the feeding-arms 8 formed with a rearwardly-projectingyoke portion 7, a rod or bar engaging the yoke portion 7, a link 9connecting the feeding-arms 8 With the racks 0, a yoke p mounted uponthe feeding-racks 0, a bar q engaging the yoke p, a link r connectingbar q with the ridged bar s, and suitable means for raising and loweringthe bar q, substantially as and for the purpose set forth.

5. In a machine of the character described, the combination of a tobaccoconveying trough b, with a compressing and feeding rack o, means forreciprocating the rack 0, and a spring-bar g engaging the tobacco in thetrough to prevent its expansion, substantially as set forth.

6. In a machine of the character described, the combination of a tobaccoconveying trough b, with the plates d, and spring-bar g, adapted toprevent the expansion of the tobacco in the trough, the compressing andfeeding racks o operating in trough b, the feedingarms 8 operating inthe trough b in front of the racks, and means for operating the racksand feeding-arms to cause them to operate successively upon the tobacco,substantially as set forth.

7. In a machine of the character described,

` the combination of a tobacco-conveying trough b, and means forcompressing and feeding tobacco therein, with a retarding devicecomprising spring-pressed plates arranged at the outlet end of thetrough to retain the tobacco While being cut, and a cutter operating atthe end of the trough and adapted to sever the successive charges fromthe tobacco in the trough, substantially as set forth.

8. In a machine of the character described, the combination of a tobaccoconveying trough h and means for compressing and feeding tobaccotherein, with the spring-pressed tobacco-retarding plates 13 arranged atthe outlet end of the trough, the reciprocating cutter 17, and meansoperated by the cutter for raising the plates, substantially as setforth.

9. In a machine of the character described, the combination of a tobaccoconveying trough b and means for compressing and feeding tobaccotherein, with the spring-pressed tobacco-retarding plates 13 arranged atthe outlet end of the trough, the reciprocating cutter 17, the lever 15,supporting-plates 13, the bell-crank lever 18 engaging lever 15, and anadjustable device carried by cutter 17 and adapted to engage and operatelever 18, substantially as and for the purpose set forth.

10. The combination of the wrapping-table 2O and suitable means forapplying the wrapper; a mold 28 for receiving the bunches afterWrapping; the vertical rock-shaft 37, lever 38 and cam 39 foroscillating said shaft; the beam 40 mounted on said rock-shaft andreceiving horizontal reciprocating movement therefrom; the headpiece 41mounted on the free end of the beam 40; the rigid arm 42 mounted on theheadpiece 41; the swiveled yoke 43 carried by the arm 42; the roller 44mounted in the swiveled yoke 43; the lever 45 fulcrumed intermediatelyof its ends and bearing at one end against the roller 44 and at theother end against the end of the beam 40 and the catching-jaws 50, 51operating to carry the wrapper-bunches from the wrapping-table to themold, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twowitnesses.

JOHANN RUDOLF SCHMITT.

Witnesses:

RICHARD GUENTHER, CARL GRUND.

